$142+ Cheap flights from St. Louis (STL) to Mexico
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/12. Fares are subject to change and may not be available on all flights or dates of travel.
STL — MEX
avr. 16 — avr. 231
Round-trip
1 adult, Economy
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Cheapest flights from St. Louis to MexicoExplore the most affordable flight options available from St. Louis to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mars 17, 2026.
Explore the most affordable flight options available from St. Louis to Mexico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mars 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/156:00 am
STL
- CUN
Nonstop3h 17m
Frontier
mer. 4/2211:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/16![Frontier logo]()
$316
This Super.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/146:00 am
STL
- CUN
Nonstop3h 17m
Frontier
mar. 4/2111:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/15![Frontier logo]()
$319
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/196:00 am
STL
- CUN
Nonstop3h 17m
Frontier
jeu. 4/2311:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/15![Frontier logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/258:17 pm
STL
- MEX
1 stop22h 13m
Multiple Airlines
sam. 5/28:40 am
MEX
- STL
1 stop9h 52m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/65:27 pm
STL
- CUN
3 stops30h 31m
Multiple Airlines
mar. 5/1211:13 am
CUN
- STL
Nonstop3h 26m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$329
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/108:16 pm
STL
- CUN
1 stop15h 08m
Frontier
ven. 4/1711:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/13![Frontier logo]()
$332
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/258:17 pm
STL
- MEX
1 stop22h 13m
Multiple Airlines
lun. 5/48:40 am
MEX
- STL
1 stop9h 52m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/88:08 pm
STL
- CUN
1 stop15h 56m
Frontier
jeu. 5/1411:13 am
CUN
- STL
Nonstop3h 26m
Frontier
Deal found 3/12![Frontier logo]()
$336
This Gotogate deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/248:23 pm
STL
- CUN
1 stop16h 23m
Frontier
mar. 4/2811:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/13![Frontier logo]()
$337
This Expedia deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/146:00 am
STL
- CUN
Nonstop3h 17m
Frontier
ven. 4/173:54 pm
CUN
- STL
1 stop27h 38m
Frontier
Deal found 3/13![Frontier logo]()
$338
This Expedia deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/138:19 pm
STL
- CUN
1 stop18h 20m
Frontier
jeu. 4/1611:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/15![Frontier logo]()
$342
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/46:15 am
STL
- CUN
Nonstop3h 17m
Frontier
jeu. 4/911:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/12![Frontier logo]()
$343
Best flights from St. Louis to MexicoDiscover carefully curated flight deals from St. Louis to Mexico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated mars 17, 2026.
Discover carefully curated flight deals from St. Louis to Mexico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated mars 17, 2026.
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/296:00 am
STL
- SJD
1 stop9h 04m
Delta
mer. 5/610:24 am
SJD
- STL
2 stops11h 11m
Delta
Deal found 3/15![Delta logo]()
$396
This United Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/296:00 am
STL
- SJD
1 stop6h 30m
United Airlines
mer. 5/61:44 pm
SJD
- STL
1 stop6h 46m
United Airlines
Deal found 3/15![United Airlines logo]()
$396
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/96:29 pm
STL
- GDL
2 stops18h 11m
Multiple Airlines
jeu. 4/162:37 pm
GDL
- STL
1 stop23h 42m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$450
This FlightHub deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/284:59 pm
STL
- MEX
1 stop27h 46m
Frontier
mar. 5/58:45 pm
MEX
- STL
1 stop16h 54m
Frontier
Deal found 3/15![Frontier logo]()
$464
This Aeromexico deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Aeromexico is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/136:00 am
STL
- PVR
2 stops10h 10m
Aeromexico
mer. 4/156:00 am
PVR
- STL
2 stops16h 36m
Aeromexico
Deal found 3/14![Aeromexico logo]()
$492
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/15:51 am
STL
- PVR
1 stop6h 47m
American Airlines
ven. 5/83:10 pm
PVR
- STL
2 stops16h 44m
American Airlines
Deal found 3/16![American Airlines logo]()
$516
This Volaris deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 6/267:00 am
STL
- MEX
1 stop17h 10m
Volaris
lun. 6/298:40 am
MEX
- STL
1 stop9h 33m
Volaris
Deal found 3/16![Volaris logo]()
$569
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/217:00 am
STL
- SJD
2 stops12h 49m
Delta
mar. 4/282:55 pm
SJD
- STL
1 stop7h 30m
Delta
Deal found 3/12![Delta logo]()
$396
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/18:30 pm
STL
- SJD
2 stops16h 00m
United Airlines
ven. 5/81:02 pm
SJD
- STL
1 stop14h 45m
United Airlines
Deal found 3/16![United Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/3011:21 am
STL
- GDL
2 stops25h 19m
Multiple Airlines
jeu. 5/75:30 pm
GDL
- STL
1 stop20h 09m
Multiple Airlines
Deal found 3/15![Multiple Airlines logo]()
$455
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/1911:42 am
STL
- CUN
1 stop8h 33m
Delta
jeu. 4/239:12 am
CUN
- STL
2 stops12h 07m
Delta
Deal found 3/15![Delta logo]()
$419
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/178:23 pm
STL
- GDL
2 stops40h 17m
Multiple Airlines
mer. 4/295:25 pm
GDL
- STL
1 stop20h 54m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/56:00 am
STL
- CUN
2 stops12h 40m
Delta
jeu. 4/912:45 pm
CUN
- STL
1 stop10h 40m
Delta
Deal found 3/14![Delta logo]()
$419
This FlightHub deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/38:06 pm
STL
- MEX
2 stops27h 39m
Frontier
sam. 5/98:40 am
MEX
- STL
1 stop9h 43m
Frontier
Deal found 3/16![Frontier logo]()
$510
This lastminute.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/296:00 am
STL
- QRO
2 stops10h 02m
Aeromexico
mer. 5/69:12 am
QRO
- STL
2 stops11h 07m
Aeromexico
Deal found 3/15![Aeromexico logo]()
$528
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/126:00 am
STL
- SJD
1 stop6h 30m
United Airlines
mer. 4/1511:52 am
SJD
- STL
1 stop9h 19m
United Airlines
Deal found 3/12![United Airlines logo]()
$506
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/94:19 pm
STL
- MEX
1 stop28h 26m
Multiple Airlines
mer. 5/139:05 pm
MEX
- STL
1 stop16h 34m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$465
This Volaris deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 3/276:00 am
STL
- CUN
Nonstop3h 30m
Volaris
lun. 4/611:48 am
CUN
- STL
Nonstop3h 31m
Volaris
Deal found 3/16![Volaris logo]()
$575
This American Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/112:27 pm
STL
- QRO
1 stop11h 20m
American Airlines
ven. 5/81:19 pm
QRO
- STL
1 stop18h 35m
American Airlines
Deal found 3/17![American Airlines logo]()
$581
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/16:00 am
STL
- SJD
1 stop7h 31m
Delta
mer. 5/66:07 am
SJD
- STL
2 stops13h 12m
Delta
Deal found 3/12![Delta logo]()
$441
This Mytrip deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/308:06 pm
STL
- MEX
2 stops27h 39m
Frontier
jeu. 5/74:10 pm
MEX
- STL
2 stops26h 13m
Frontier
Deal found 3/15![Frontier logo]()
$536
This lastminute.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/19:59 am
STL
- QRO
2 stops14h 40m
Aeromexico
ven. 5/812:43 pm
QRO
- STL
2 stops10h 16m
Aeromexico
Deal found 3/17![Aeromexico logo]()
$590
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/31:05 pm
STL
- MEX
1 stop12h 30m
Multiple Airlines
sam. 5/97:00 am
MEX
- STL
1 stop10h 04m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$488
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/268:15 pm
STL
- PVR
2 stops15h 55m
United Airlines
dim. 5/32:52 pm
PVR
- STL
1 stop6h 38m
United Airlines
Deal found 3/12![United Airlines logo]()
$537
This Booking.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/298:08 pm
STL
- GDL
2 stops28h 51m
Frontier
dim. 5/317:13 am
GDL
- STL
2 stops35h 10m
Frontier
Deal found 3/14![Frontier logo]()
$537
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 5/97:05 pm
STL
- CUN
1 stop15h 05m
Delta
mar. 5/129:14 am
CUN
- STL
2 stops12h 15m
Delta
Deal found 3/12![Delta logo]()
$449
This Volaris deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Volaris is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 5/2210:55 am
STL
- MEX
1 stop12h 50m
Volaris
mar. 5/2611:05 am
MEX
- STL
1 stop11h 52m
Volaris
Deal found 3/15![Volaris logo]()
$600
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/247:12 am
STL
- MID
1 stop7h 24m
American Airlines
mar. 4/283:18 pm
MID
- STL
1 stop17h 58m
American Airlines
Deal found 3/16![American Airlines logo]()
$634
This Mytrip deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/91:14 pm
STL
- GDL
1 stop28h 33m
Frontier
jeu. 4/163:34 pm
GDL
- STL
1 stop15h 20m
Frontier
Deal found 3/12![Frontier logo]()
$542
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/278:17 pm
STL
- BJX
2 stops45h 03m
Multiple Airlines
jeu. 5/1410:15 am
BJX
- STL
1 stop27h 24m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$495
Last-minute flights from St. Louis to MexicoDiscover last-minute flight deals from St. Louis to Mexico. Data last updated mars 17, 2026 and is based on user searches.
Discover last-minute flight deals from St. Louis to Mexico. Data last updated mars 17, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/46:15 am
STL
- CUN
Nonstop3h 17m
Frontier
mer. 4/811:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/12![Frontier logo]()
$343
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/108:16 pm
STL
- CUN
1 stop15h 08m
Frontier
ven. 4/1711:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/13![Frontier logo]()
$332
This Expedia deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/138:19 pm
STL
- CUN
1 stop18h 20m
Frontier
jeu. 4/1611:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/15![Frontier logo]()
$342
This Super.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/146:00 am
STL
- CUN
Nonstop3h 17m
Frontier
mar. 4/2111:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/15![Frontier logo]()
$319
This Expedia deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/146:00 am
STL
- CUN
Nonstop3h 17m
Frontier
ven. 4/173:54 pm
CUN
- STL
1 stop27h 38m
Frontier
Deal found 3/13![Frontier logo]()
$338
This Booking.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 4/146:00 am
STL
- CUN
Nonstop3h 17m
Frontier
dim. 4/194:07 pm
CUN
- STL
1 stop14h 43m
Frontier
Deal found 3/13![Frontier logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/156:00 am
STL
- CUN
Nonstop3h 17m
Frontier
mer. 4/2211:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/16![Frontier logo]()
$316
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/196:00 am
STL
- CUN
Nonstop3h 17m
Frontier
jeu. 4/2311:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/15![Frontier logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/228:23 pm
STL
- MEX
2 stops24h 22m
Multiple Airlines
sam. 5/28:40 am
MEX
- STL
1 stop9h 52m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$345
This Gotogate deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/248:23 pm
STL
- CUN
1 stop16h 23m
Frontier
mar. 4/2811:48 am
CUN
- STL
Nonstop3h 31m
Frontier
Deal found 3/13![Frontier logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/258:17 pm
STL
- MEX
1 stop22h 13m
Multiple Airlines
sam. 5/28:40 am
MEX
- STL
1 stop9h 52m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 4/258:17 pm
STL
- MEX
1 stop22h 13m
Multiple Airlines
lun. 5/48:40 am
MEX
- STL
1 stop9h 52m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$333
One-way flights from St. Louis to MexicoSearch for one-way flight options from St. Louis to Mexico. Find affordable one-way fares based on user searches. Data last updated mars 17, 2026.
Search for one-way flight options from St. Louis to Mexico. Find affordable one-way fares based on user searches. Data last updated mars 17, 2026.
This Super.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/126:15 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 3/13![Frontier logo]()
$142
This Frontier deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/106:00 am
STL
- CUN
Nonstop3h 15m
Frontier
Deal found 3/13![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/156:00 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 3/13![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/266:00 am
STL
- CUN
Nonstop3h 15m
Frontier
Deal found 3/13![Frontier logo]()
$167
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/126:33 pm
STL
- CUN
1 stop19h 34m
Frontier
Deal found 3/13![Frontier logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 3/298:06 pm
STL
- GDL
1 stop24h 45m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$171
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 4/94:59 pm
STL
- CUN
1 stop15h 12m
Frontier
Deal found 3/13![Frontier logo]()
$175
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/137:00 am
STL
- SJD
1 stop8h 45m
Delta
Deal found 3/16![Delta logo]()
$176
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 4/104:59 pm
STL
- CUN
1 stop15h 12m
Frontier
Deal found 3/12![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 4/86:15 am
STL
- CUN
Nonstop3h 17m
Frontier
Deal found 3/12![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/126:33 pm
STL
- PVR
3 stops48h 02m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$179
This Mytrip deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 4/1911:16 am
STL
- CUN
1 stop27h 40m
Frontier
Deal found 3/13![Frontier logo]()
$181
Find flight deals from St. Louis to Mexico
Keep the following information in mind while searching for St. Louis to Mexico flight deals. Data was last updated mars 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $316 (Kiwi.com) |
One-way from | $142 (Super.com) |
Popular in | December |
Cheapest in | September |
Average price | $667 |
Good round-trip deal | $430 or less |
Good one-way deal | $213 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from St. Louis to Mexico that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mars 17, 2026.
Use the filters below to find and compare flights from St. Louis to Mexico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisSan José del Cabo
STL - SJD
STLSJD
Lambert-St Louis
mer. 4/29
6:00 am-1:04 pm
1 stop9h 04m
San José del Cabo Los Cabos
mer. 5/6
10:24 am-11:35 pm
2 stops11h 11m
$396
St. LouisSan José del Cabo
STL - SJD
STLSJD
Lambert-St Louis
mer. 4/29
6:00 am-10:30 am
1 stop6h 30m
San José del Cabo Los Cabos
mer. 5/6
1:44 pm-10:30 pm
1 stop6h 46m
$396
St. LouisSan José del Cabo
STL - SJD
STLSJD
Lambert-St Louis
mar. 4/21
7:00 am-5:49 pm
2 stops12h 49m
San José del Cabo Los Cabos
mar. 4/28
2:55 pm-12:25 am
1 stop7h 30m
$396
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
dim. 4/19
11:42 am-8:15 pm
1 stop8h 33m
Cancun
jeu. 4/23
9:12 am-9:19 pm
2 stops12h 07m
$419
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
dim. 4/5
6:00 am-6:40 pm
2 stops12h 40m
Cancun
jeu. 4/9
12:45 pm-11:25 pm
1 stop10h 40m
$419
St. LouisSan José del Cabo
STL - SJD
STLSJD
Lambert-St Louis
ven. 5/1
8:30 pm-10:30 am
2 stops16h 00m
San José del Cabo Los Cabos
ven. 5/8
1:02 pm-5:47 am
1 stop14h 45m
$441
St. LouisSan José del Cabo
STL - SJD
STLSJD
Lambert-St Louis
ven. 5/1
6:00 am-11:31 am
1 stop7h 31m
San José del Cabo Los Cabos
mer. 5/6
6:07 am-9:19 pm
2 stops13h 12m
$441
St. LouisCancún
STL - CUN
STLCUN
Lambert-St Louis
sam. 5/9
7:05 pm-10:10 am
1 stop15h 05m
Cancun
mar. 5/12
9:14 am-9:29 pm
2 stops12h 15m
$449
St. LouisGuadalajara
STL - GDL
STLGDL
Lambert-St Louis
jeu. 4/9
6:29 pm-11:40 am
2 stops18h 11m
Guadalajara Miguel Hidal
jeu. 4/16
2:37 pm-3:19 pm
1 stop23h 42m
$450
St. LouisGuadalajara
STL - GDL
STLGDL
Lambert-St Louis
jeu. 4/30
11:21 am-11:40 am
2 stops25h 19m
Guadalajara Miguel Hidal
jeu. 5/7
5:30 pm-2:39 pm
1 stop20h 09m
$455
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from St. Louis to Mexico
Have a flexible travel schedule? Discover the best time to fly to Mexico from St. Louis with our price prediction graph.
STL-SJD
STL-GDL
STL-MEX
STL-PVR
STL-CUN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from St. Louis to Mexico
STL-MX0
STL-SJD
STL-GDL
STL-MEX
STL-PVR
What is the cheapest month to book a flight from St. Louis to Mexico?
Currently, October is the cheapest month in which you can book a flight from St. Louis to Mexico (average of $186). Flying from St. Louis to Mexico in April is currently the most expensive (average of $292). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from STL to MX?
Find hourly flight availability from St. Louis to Mexico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated mars 17, 2026.
When flying from St. Louis to Mexico, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Mexico
Get insights into the airlines that provide service to Mexico. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Mexico. Reviews last updated mars 17, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from St. Louis to Mexico. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Crew
8.6
Overall
8.0
Boarding
8.1
Comfort
8.0
Food
7.0
Entertainment
7.5
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Related info for your journey
Find useful and relevant information for your journey from St. Louis to Mexico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for St. Louis to Mexico
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Complete your trip
Complete your trip to Mexico by adding a car rental and/or hotel reservation to your travel itinerary.
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Find flights from St. Louis to Mexico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
St. Louis and Mexico flights
Browse other St. Louis and Mexico flight options. Last updated on mars 17, 2026.
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St. Louis to Mexico flights
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Consider these flights traveling to Mexico regions.
Top 9 airlines flying from St. Louis to Mexico
Discover the top 9 airlines that operate flights from St. Louis to Mexico. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated mars 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$168 | Average$525 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$174 | Average$587 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$180 | Average$375 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$213 | Average$455 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$278 | Average$610 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$404 | Average$468 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$412 | Average$619 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$419 | Average$629 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$527 | Average$590 | FlexibilityNo cancel fee | On-time75% |